// Name: Anita Blake              Partner: Ted Forrester
// ID:   014916                   ID:      642708
// Sec:  Yan T 2:30               Sec:     Artemov R 1:25

// Date: May 4, 2000
// Project 7: Java Inheritance

public class Creature {
    protected String name; // Creature's name

    // constructor: initialize name to n
    public Creature(String n) { name = n; }

    // speak, i.e. vocalize
    public void speak() { System.out.println(name + " speaks"); }

    // perform an action
    public void act() { speak(); }
}

public class Cat extends Creature {
    private int purrLength; // purr length (number of r's), assumed >= 3

    // constructor: name is name, purr is purr length
    public Cat(String name, int purr) { super(name); purrLength = purr; }

    // speak: meow
    public void speak() { System.out.println(name + " meows"); }

    // purr
    public void purr() { 
        System.out.print(name + " purr");
        for (int i = 2; i<purrLength; i++) System.out.print("r");
        System.out.println("s");
    }

    // act: randomly choose between purr and old choice for act
    public void act() {
        if (Math.random() < .5) purr();
        else super.act();
    }
}

public class Dog extends Creature {
    private int wags = 0; // number of wags already performed

    // constructor: name is name
    public Dog(String name) { super(name); }

    // speak: woof
    public void speak() { System.out.println(name + " woofs"); }

    // wag and print new number of times have wagged
    public void wag() { 
        wags++;
        System.out.println(name + " wags its tail for the " + wags + "-th time");
    }

    // act: randomly choose between wag and old choice for act
    public void act() {
        if (Math.random() < .5) wag();
        else super.act();
    }
}

public class DogCow extends Dog {
    // constructor: DogCows are always named "Clarus"
    public DogCow() { super("Clarus"); }

    // speak: randomly choose between moof and old speak
    public void speak() { 
        if (Math.random() < .5) super.speak();
        else System.out.println(name + " moofs"); 
    }
}

// create 4 Creatures and repeatedly (5 times) have each act one at a time
public class CUCSApplication {
    public static void main(String args[]) {
        Creature[] c = { new Dog("Butch"),    new Cat("Fluffy",3), 
                         new Cat("Sleepy",7), new DogCow()         };
        for (int times = 5; times>0; times--)
            for (int i = 0; i<c.length; i++)
                c[i].act();
    }
}

/* ****************************************************************************

Sample Output:

Butch woofs
Fluffy purrrs
Sleepy purrrrrrrs
Clarus woofs
Butch wags its tail for the 1-th time
Fluffy purrrs
Sleepy purrrrrrrs
Clarus moofs
Butch wags its tail for the 2-th time
Fluffy meows
Sleepy meows
Clarus woofs
Butch wags its tail for the 3-th time
Fluffy purrrs
Sleepy purrrrrrrs
Clarus moofs
Butch wags its tail for the 4-th time
Fluffy purrrs
Sleepy meows
Clarus wags its tail for the 1-th time

**************************************************************************** */